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CONSOLIDATED STATEMENT OF CHANGES IN EQUITY AND OTHER COMPREHENSIVE INCOME (Unaudited) - 3 months ended Mar. 31, 2018 - USD ($) shares in Millions, $ in Millions | Total | Common Stock | Paid-In Capital | Retained Earnings | Accumulated Other Comprehensive Loss | Treasury Stock | Stock Held By Employee Benefits Trusts | Noncontrolling Interests
--- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance (in shares) at Dec. 31, 2017 |  | 120.1 |  |  |  |  |  |
Beginning Balance at Dec. 31, 2017 | $ 3,239.0 | $ 236.6 | $ 1,332.7 | $ 4,600.6 | $ (412.0) | $ (2,577.6) | $ (5.9) | $ 64.6
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Net income | 93.8 |  |  | 90.9 |  |  |  | 2.9
Other comprehensive income | 46.9 |  |  |  | 45.2 |  |  | 1.7
Shares issued under stock and benefit plans, net of minimum tax withholdings (in shares) |  | 0.2 |  |  |  |  |  |
Shares issued under stock and benefit plans, net of minimum tax withholdings | (10.2) |  | (8.9) |  |  | (1.3) |  |
Cash dividends ($0.39 per share) | (47.1) |  |  | (47.1) |  |  |  |
Dividends paid to employee benefits trusts | 0.2 |  | 0.2 |  |  |  |  |
Stock-based compensation expense | 12.8 |  | 12.8 |  |  |  |  |
Purchases of redeemable noncontrolling interests | (0.4) |  | (0.3) |  |  |  |  | (0.1)
Redeemable noncontrolling interest adjustment | 0.0 |  |  | 4.5 |  |  |  | (4.5)
Dividends paid to noncontrolling interests | (2.4) |  |  |  |  |  |  | (2.4)
Cumulative adjustment from change in accounting principle | 4.2 |  |  | 4.2 |  |  |  |
Other | 0.1 |  | 0.1 |  |  |  |  |
Ending Balance (in shares) at Mar. 31, 2018 |  | 120.3 |  |  |  |  |  |
Ending Balance at Mar. 31, 2018 | 3,336.9 | $ 236.6 | $ 1,336.6 | $ 4,653.1 | $ (366.8) | $ (2,578.9) | $ (5.9) | $ 62.2
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Common stock authorized, amount for future purchases | $ 590.1 |  |  |  |  |  |  |

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